I'm a pilot, and absolutely this is a crucial difference.
It also reminds me of a time years ago when a team I was on had to extend a Memcache client library, as it couldn't differentiate between the following two conditions:
- "I tried to retrieve a key from cache but was unsuccessful (due to connection error, etc)"
- "I tried to retrieve a key from cache but determined conclusively that key does not exist in the cache"
If it was important for a caching layer on our silly social game, the same thing is clearly important in aviation.
It also reminds me of a time years ago when a team I was on had to extend a Memcache client library, as it couldn't differentiate between the following two conditions:
- "I tried to retrieve a key from cache but was unsuccessful (due to connection error, etc)"
- "I tried to retrieve a key from cache but determined conclusively that key does not exist in the cache"
If it was important for a caching layer on our silly social game, the same thing is clearly important in aviation.